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1. Select a type B IPL in Manual mode.
For information on how to select IPL options, see “IPL type, mode, and speed
options” on page 217.
Attention: For systems with logical partitions, performing an IPL on the
primary partition causes the secondary partitions to be powered down. Failing
to power down these secondary partitions will cause an abnormal power-down
on the secondary partitions and possible loss of data.
2. Perform one of the following:
v If there is a system hang condition after powering on the system, perform
a delayed power-off. (This is the data for problem analysis.) When the
system is off, press the Power button on the control panel to perform an IPL.
Select Function 03 if the delayed power-off takes longer than 40 minutes to
complete. Be careful to realize that performing Function 03 may cause
damage to objects, and it may also cause data loss.
v If there is an attention light after powering on the system, use the
Increment (↑) or Decrement (↓) button to select control panel Function 03.
Press the Enter button on the control panel to perform an IPL.
v When the system is powered off, press the Power button on the control
panel to perform an IPL.
3. The IPL or Install the System display appears on the primary console. Select the
Use Dedicated Service Tools option.
For more information on how to identify the primary console, see Determining
a primary or alternative console.
4. The DST Sign On display appears. Sign on to DST with a valid user ID and
password.
Enter a valid user ID and get the password from the customer. If the customer
has changed the full DST authority, user ID, or password, ask the customer for
the correct values.
Note: If prompted for a password, be sure to give the new (changed) password
to the customer.
Note: You are limited to three sign on attempts to DST. After three
unsuccessful attempts, the service tools user ID will be disabled. A user
ID with a service tool security privilege will need to reset the ID.
5. The Use Dedicated Service Tools (DST) display appears.
The system is in the limited paging environment (see “System paging
environments” on page 2). See “DST options” on page 10 for details on DST
options.
This ends the procedure.
Changing a service tools user ID
Use this procedure to change a service tools user ID:
1. Sign on to DST.
2. Take option 5 on Use Dedicated Service Tools (DST) screen to Work with Dst
Environment.
3. Take option 3 on Work with Dst Environment screen to work with service
tools user IDs.
This ends the procedure.
Chapter 1. Dedicated Service Tools (DST) 5